Don't pull out Silver Burnett. When you are teaching " Building uponNumbers You Know", show how the so called basic algorithm and othertechniques have similarities. At that time, I go over several typesof algorithm and then make sure they understand the algorithm that thesixth grade is requiring children to know. Remember in most problemschildren are asked to do a problem at least two different ways. Oneof these ways could be the standard thing. Sometimes I require thechildren to do three ways when one is the standard method. One trickis to not teach this topic too late in the year. Otherwise yourstudents will have little opportunity to practice and understand thediffent algorithms. ( I did one year and that was bad news.)Susan Weiss